Oops, I changed to b12 and used gl.setSwapInterval(0), but no frame rates change be visible I tried both ATI 9700 and Nvidia 5700LE on WindowsXPIt remains 64fps while on a Debian box I can render up to 250fps

If a JOGL app draws just a few OpenGL lines/polygons/textures/etc you should well see more than 65 fps even within Winblows.Also with Swing components laying next to the GLCanvas: no problem. Fullscreen and windowed mode. (With fullscreen you'll usually see a much higher FPS rate.)

No, I didn't use JOGL Animator, I'm using java.util.Timer.scheduleAtFixedRate() to call gldrawable.display(). I think this method is less efficient for it needs to pump the event into the event queue and the real rendering occurs in another thread.

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